The diagram below shows a simple system that turn dirty water into clean water. Summarise the information by selecting and reporting the main features, and make comparisions where relevant.

The diagram illustrates how unclean

water

is filtered

Change preposition

into

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to

Change preposition

into

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drinkable

water

. The system is operated through the

water

-filter assembly which contains two major parts, the above

storage

drum and the

storage

drum. The

filting

Correct your spelling

filing

fitting

filtering

procedures start with pouring the dirty

water

into the above

storage

drum after lifting up its plastic lid. In the above

storage

drum, there are three layers which are sand, charcoal, and gravel

follow

Wrong verb form

following

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the position order from the top to the bottom. These are the materials which can absorb the unclean substances from the

water

and filter the

water

gradually. The processed

water

then

is taken into a plastic barrel which connects the two drums. Through the barrel, the

water

which is ready for drinking flows into the

storage

drum where people can

aquire

Correct your spelling

acquire

clean

water

from the tap attached.